Reactions of carbanions derived from α-substituted-methyl tolyl sulfones with quinone methides as Michael acceptors
作者:Grażyna Groszek、Sylwia Błażej、Aneta Brud、Dariusz Świerczyński、Tadeusz Lemek
DOI:10.1016/j.tet.2005.12.040
日期:2006.3
Nucleophilic addition of α-halo-4-tolylsulfonyl methyl anions to quinone methides and subsequent reactions were studied. Three kinds of consecutive reaction products were isolated, depending on the substrate structures and reaction conditions. Two of them were identified as rearrangement products and one as the vicarious nucleophilic substitution (VNS) product. An unexpected 1,2-migration of the tosyl
研究了α-卤代-4-甲苯磺酰基甲基阴离子亲核加成到醌甲基化物中和随后的反应。根据底物结构和反应条件,分离出三种连续的反应产物。其中两个被鉴定为重排产物,一个被鉴定为替代性亲核取代(VNS)产物。观察到甲苯磺酰基的意外的1,2-迁移。简要讨论了反应机理。